RegulatoryMay 19, 2026, 04:07 PM
Core Natural Resources: Mine Safety Order Vacated at Leer South
AI Summary
Core Natural Resources, Inc. announced that an imminent danger order issued to its subsidiary, Wolf Run Mining LLC, at the Leer South mine has been vacated. The order, issued on May 13, 2026, was initially due to elevated methane concentrations. The Mine Safety and Health Administration (MSHA) terminated the order on May 14, 2026, and subsequently determined on May 18, 2026, that an imminent danger had never existed.
Key Highlights
- Core Natural Resources subsidiary, Wolf Run Mining LLC, received an imminent danger order.
- Order issued on May 13, 2026, at the Leer South mine in Barbour County, West Virginia.
- The order cited elevated methane concentrations found by an inspector.
- The Mine Safety and Health Administration (MSHA) terminated the order on May 14, 2026.
- MSHA vacated the order on May 18, 2026, determining no imminent danger had existed.
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